Shared via the actors' social media pages, the poster finds Barry Allen and Oliver Queen in a classic switcheroo situation as Gustin wears Queen's Arrow suit and Amell dons Allen's Flash suit. "My name is Barry Allen and I am the fastest man alive," Amell captioned the poster on Twitter before following the sentiment with another statement. "This is real, btw," he wrote. "I'm in the Flash suit while I type this."

Gustin captioned his post of the image with, "....Wut? (ALERT: This is not fan art)," via Instagram.

The reveal also includes the Crossover's title "Elseworlds" which certainly implies some crazy multiverse happenings. Previous posts of Tyler Hoechlin in a black Superman suit only fuel that argument more, as well as the poster's tagline "Destiny Will Be Rewritten."

There's no sign of Melissa Benoist's Supergirl in these promo photos, but the crossover event will include that series in addition to The Flash and Arrow. And the poster isn't the only thing these actors have been sharing! Gustin and Amell also posted photos together wearing the same biker-type outfit... whatever that means?